Digital Commons Network^™

Smartic: Towards Building An Accurate, Robust And Scalable Specification Miner, David Lo, Siau-Cheng Khoo

Research Collection School Of Computing and Information Systems

Improper management of software evolution, compounded by imprecise, and changing requirements, along with the “short time to market ” requirement, commonly leads to a lack of up-to-date specifications. This can result in software that is characterized by bugs, anomalies and even security threats. Software specification mining is a new technique to address this concern by inferring specifications automatically. In this paper, we propose a novel API specification mining architecture called SMArTIC (Specification Mining Architecture with Trace fIltering and Clustering) to improve the accuracy, robustness and scalability of specification miners. This architecture is constructed based on two hypotheses: (1) Erroneous traces …

Modeling Local Interest Points For Semantic Detection And Video Search At Trecvid 2006, Yu-Gang Jiang, Xiaoyong Wei, Chong-Wah Ngo, Hung-Khoon Tan, Wanlei Zhao, Xiao Wu

Research Collection School Of Computing and Information Systems

Local interest points (LIPs) and their features have been shown to obtain surprisingly good results in object detection and recognition. Its effectiveness and scalability, however, have not been seriously addressed in large-scale multimedia database, for instance TRECVID benchmark. The goal of our works is to investigate the role and performance of LIPs, when coupling with multi-modality features, for high-level feature extraction and automatic video search.

Management And Self-Activity: Accounting For The Crisis In Profit-Taking, Stefano Harney

Research Collection Lee Kong Chian School Of Business

The crisis in measurement identified by those working in the tradition of Italian autonomia has consequences for the critique of accounting and management. If both capitalist work and the commodity are today communicative and overtly political, a critique that merely points to these characteristics will have no transformative effect. This paper uses the Trinidadian Marxist theorist C.L.R. James’s notion of self-activity to suggest that the crisis in measurement is a symptom of the separation of work and value. The institution of forms of self-management and what might be called wars of command begin to replace the governmentality of the wage …

Linking Brand Equity To Customer Equity, Robert P. Leone, Vithala R. Rao, Kevin Lane Keller, Anita Man Luo, Leigh Mcalister, Rajendra Kumar Srivastava

Research Collection Lee Kong Chian School Of Business

Customer equity and brand equity are two of the most important topics to academic researchers and practitioners. As part of the 2005 Thought Leaders Conference held at the University of Connecticut, the authors were asked to review what was known and not known about the relationship between brand equity and customer equity. During their discussions, it became clear that whereas two distinct research streams have emerged and there are distinct differences, the concepts are also highly related. It also became clear that whereas the focus of both brand equity and customer equity research has been on the end consumer, there …

Performance Differences Across Strategic Groups: An Examination Of Financial Market-Based Performance Measures, J. Rajendran Pandian, Howard Thomas, Olivier Furrer, William C. Bogner

Research Collection Lee Kong Chian School Of Business

One of the more interesting issues in the strategic management field is the question of whether intra-industry performance differences exist, particularly across strategic groups. Most of the existing studies have used accounting measures of performance despite the documented weaknesses of such measures. This paper examines whether financial market-based measures of performance are superior to accounting-based measures in identifying performance differences across strategic groups. Hypotheses are tested on data from an existing sample of firms in the US pharmaceutical industry. The empirical results indicate that performance differences are more likely to exist across strategic groups when financial market performance measures are …

Justice For The Vulnerable? Debating The Relationship Between Aboriginal People And Australian Criminal Justice, Mark Findlay

Research Collection Yong Pung How School Of Law

As much as it might be said that a nation is judged by the way it treats its most disadvantaged citizens, the reality of criminal justice is dependent on its relations with the vulnerable. On any measure Australian criminal justice is indicted by the overrepresentation of Aboriginal people in its domain.

Procedural Issues In The Anti-Dumping Regulations Of China: A Critical Review Under The Wto Rules, Won-Mog Choi, Henry S. Gao

Research Collection Yong Pung How School Of Law

Since the World Trade Organization (WTO) was established, China his made large-scale efforts to shape its trade remedy system through legal and organizational changes. Through these changes, China could clarify the meanings of WTO anti-dumping provisions including the provision relating to the definition of domestic industry. Moreover, procedural disciplines on reviews were fortified in Chinese anti-dumping system. While the overall improvements to the trade remedy system of China are evident, definitions of several key legal terms, including the concept of related producers, the negligible import standard, and adjustment factors for a fair comparison between normal values and export prices are …

New Paradigm Of Inference Control With Trusted Computing, Yanjiang Yang, Yingjiu Li, Robert H. Deng

Research Collection School Of Computing and Information Systems

The database server is a crucial bottleneck in traditional inference control architecture, as it enforces highly computation-intensive auditing for all users who query the protected database. As a result, most auditing methods, though rigorously studied, can never be implemented in practice for protecting largescale real-world database systems. To shift this paradigm, we propose a new inference control architecture that will entrust inference control to each users platform, provided that the platform is equipped with trusted computing technology. The trusted computing technology is designed to attest the state of a users platform to the database server, so as to assure the …

Low-Latency Broadcast In Multirate Wireless Mesh Networks, Chun Tung Chou, Archan Misra, Junaid Qadir

Research Collection School Of Computing and Information Systems

In a multirate wireless network, a node can dynamically adjust its link transmission rate by switching between different modulation schemes. In the current IEEE802.11a/b/g standards, this rate adjustment is defined for unicast traffic only. In this paper, we consider a wireless mesh network (WMN), where a node can dynamically adjust its link-layer multicast rates to its neighbors, and address the problem of realizing low-latency network-wide broadcast in such a mesh. We first show that the multirate broadcast problem is significantly different from the single-rate case. We will then present an algorithm for achieving low-latency broadcast in a multirate mesh which …

Unjust Enrichment And Wrongly Paid Tax, Hang Wu Tang

Research Collection Yong Pung How School Of Law

Boake Allen Limited v. Revenue and Customs Commissioners [2006] EWCA Civ 25 concerned early payment of Advance Corporation Tax ("ACT"). ACT was normally payable when a company paid dividends to its shareholders, but there was a statutory exception where the company was a subsidiary of a United Kingdom company and both the parent and subsidiary made a group income election. If the tax authorities accepted the election, the obligation to pay ACT would only accrue when the parent company paid dividends. Section 247 of the Income and Corporation Taxes Act 1988 ("ICTA") stipulated that group income elections were only available …

Natural Obligations And The Common Law Of Unjust Enrichment, Hang Wu Tang

Research Collection Yong Pung How School Of Law

Two leading restitution scholars have recently argued that the notion of natural obligations is now an important defence in the law of unjust enrichment. 'In particular, the late Professor Peter Birks asserts, in his last book, that 'the claimant cannot say that the money was not due if, behind the technicalities of the law, there was still a moral obligation to pay.' This development is interesting because the concept of natural obligations is traditionally thought to be a civilian and not a common law concept. Birks' assertion represents an attempt to use the study of comparative law to interpret the …

Understanding User Perceptions On Usefulness And Usability Of An Integrated Wiki-G-Portal, Yin-Leng Theng, Yuanyuan Li, Ee Peng Lim, Zhe Wang, Dion Hoe-Lian Goh, Chew-Hung Chang, Kalyani Chatterjea, Jun Zhang

Research Collection School Of Computing and Information Systems

This paper describes a pilot study on Wiki-G-Portal, a project integrating Wikipedia, an online encyclopedia, into G-Portal, a Web-based digital library, of geography resources. Initial findings from the pilot study seemed to suggest positive perceptions on usefulness and usability of Wiki-G-Portal, as well as subjects' attitude and intention to use.

A Model For Anticipatory Event Detection, Qi He, Kuiyu Chang, Ee Peng Lim

Research Collection School Of Computing and Information Systems

Event detection is a very important area of research that discovers new events reported in a stream of text documents. Previous research in event detection has largely focused on finding the first story and tracking the events of a specific topic. A topic is simply a set of related events defined by user supplied keywords with no associated semantics and little domain knowledge. We therefore introduce the Anticipatory Event Detection (AED) problem: given some user preferred event transition in a topic, detect the occurence of the transition for the stream of news covering the topic. We confine the events to …

Integration Of Wikipedia And A Geography Digital Library, Ee Peng Lim, Zhe Wang, Darwin Sadeli, Yuanyuan Li, Chew-Hung Chang, Kalyani Chatterjea, Dion Hoe-Lian Goh, Yin-Leng Theng, Jun Zhang, Aixin Sun

Research Collection School Of Computing and Information Systems

In this paper, we address the problem of integrating Wikipedia, an online encyclopedia, and G-Portal, a web-based digital library, in the geography domain. The integration facilitates the sharing of data and services between the two web applications that are of great value in learning. We first present an overall system architecture for supporting such an integration and address the metadata extraction problem associated with it. In metadata extraction, we focus on extracting and constructing metadata for geo-political regions namely cities and countries. Some empirical performance results will be presented. The paper will also describe the adaptations of G-Portal and Wikipedia …

Robust Controllability In Temporal Constraint Networks Under Uncertainty, Hoong Chuin Lau, Jia Li, Roland H. C. Yap

Research Collection School Of Computing and Information Systems

Temporal constraint networks are embedded in many planning and scheduling problems. In dynamic problems, a fundamental challenge is to decide whether such a network can be executed as uncertainty is revealed over time. Very little work in this domain has been done in the probabilistic context. In this paper, we propose a Temporal Constraint Network (TCN) model where durations of uncertain activities are represented by random variables. We wish to know whether such a network is robust controllable, i.e. can be executed dynamically within a given failure probability, and if so, how one might find a feasible schedule as the …

Dcma: A Label-Switching Mac For Efficient Packet Forwarding In Multi-Hop Wireless Networks, Arup Acharya, Sachin Ganu, Archan Misra

Research Collection School Of Computing and Information Systems

This paper addresses the problem of efficient packet forwarding in a multihop, wireless "mesh" network. We present an efficient interface contained forwarding (ICF) architecture for a "wireless router," i.e., a forwarding node with a single wireless network interface card (NIC) in a multihop wireless network that allows a packet to be forwarded entirely within the NIC of the forwarding node without requiring per-packet intervention by the node's CPU. To effectively forward packets in a pipelined fashion without incurring the 802.11-related overheads of multiple independent channel accesses, we specify a slightly modified version of the 802.11 MAC, called data driven cut-through …

The Cartel Party And The Rise Of The New Extreme Right, Riccardo Pelizzo

Research Collection School of Social Sciences

No abstract provided.

Assimilation And Contrast Effects In Cultural Frame Switching: Bicultural Identity Integration And Valence Of Cultural Cues, Chi-Ying Cheng, Fiona Lee, Veronica Benet-Martinez

Research Collection School of Social Sciences

This study examines how the valence of cultural cues in the environment moderates the way biculturals shift between multiple cultural identities. The authors found that when exposed to positive cultural cues, biculturals who perceive their cultural identities as compatible (high bicultural identity integration, or high BII) respond in culturally congruent ways, whereas biculturals who perceive their cultural identities as conflicting (low BII) respond in culturally incongruent ways. The opposite was true for negative cultural cues. These results show that both high and low BIIs can exhibit culturally congruent or incongruent behaviors, and have implications for understanding situations where high and …

Netcore Ceo Rajesh Jain: 'In India, The Future Of The Internet Will Be Built Around The Mobile Phone', Knowledge@Smu

Knowledge@SMU

Seven years ago, Rajesh Jain ignited a dot-com storm in India when his portal, IndiaWorld, was sold to Sify, an Internet service provider, for $115 million. Today, he is CEO of Netcore, a Linux-based messaging software firm, and also maintains an active blog, emergic.org. Jain met with Knowledge@Wharton at his offices in Mumbai to discuss how mobile phones could hold the key to the Internet's evolution in India and other emerging economies.

How Can Employers Improve Defined Contribution Plans?, Knowledge@Smu

Knowledge@SMU

If 401(k)s and similar plans are the main way Americans invest for retirement, how can employers improve them? By making enrollment automatic, minimizing the use of the employer's stock, expanding the role of annuities and improving employees' financial knowledge, according to a set of recommendations issued by the Financial Economists Roundtable, a group of about 50 prominent economists, including several Wharton faculty members.

Why The Fight Against Poverty Is Failing: A Contrarian View, Knowledge@Smu

Knowledge@SMU

Abraham George is the founder of The George Foundation, an NGO engaged in humanitarian work in India, and the author of India Untouched: The Forgotten Face of Rural Poverty. In this contrarian essay, he explores why the current strategies that governments and development agencies are employing to reduce poverty are not working the way they should. Among his arguments: Microcredit programs, as they are now practiced in India, do little to help the poor.

Singapore Management University Receives A Significant Gift Of Art From Artist Chua Ek Kay, Singapore Management University

SMU Press Releases and News

No abstract provided.

Design And Analysis Of A Class-Aware Recursive Loop Scheduler For Class-Based Scheduling, Raphael Rom, Moshe Sidi, Hwee-Pink Tan

Research Collection School Of Computing and Information Systems

In this paper, we consider the problem of devising a loop scheduler that allocates slots to users according to their relative weights as smoothly as possible. Instead of the existing notion of smoothness based on balancedness, we propose a variance-based metric which is more intuitive and easier to compute.

We propose a recursive loop scheduler for a class-based scheduling scenario based on an optimal weighted round-robin scheduler. We show that it achieves very good allocation smoothness with almost no degradation in intra-class fairness. In addition, we also demonstrate the equivalence between our proposed metric and the balancedness-based metric.

Fast Tracking Of Near-Duplicate Keyframes In Broadcast Domain With Transitivity Propagation, Chong-Wah Ngo, Wan-Lei Zhao, Yu-Gang Jiang

Research Collection School Of Computing and Information Systems

The identification of near-duplicate keyframe (NDK) pairs is a useful task for a variety of applications such as news story threading and content-based video search. In this paper, we propose a novel approach for the discovery and tracking of NDK pairs and threads in the broadcast domain. The detection of NDKs in a large data set is a challenging task due to the fact that when the data set increases linearly, the computational cost increases in a quadratic speed, and so does the number of false alarms. This paper explores the symmetric and transitive nature of near-duplicate for the effective …

Critical Success Factors For Erp Implementation And Upgrade, Fiona Fui-Hoon Nah, Santiago Delgado

Research Collection School Of Computing and Information Systems

Seven categories of critical success factors were identified from the ERP literature: (1) business plan and vision; (2) change management, (3) communication; (4) ERP team composition, skills and compensation; (5) management support and championship; (6) project management, (7) system analysis, selection and technical implementation. We conducted a case study of two organizations that had implemented and upgraded ERP systems. We adopted Markus and Tanis' four-phase model and compared the importance of these critical success factors across the phases of ERP implementation and upgrade. The importance of these factors across the phases of ERP implementation and upgrade is very similar. 'Business …

The Development Of Social And Cultural Geographies In Taiwan: Knowledge Production And Social Relevance, Hsin-Ling Wu, Sue-Ching Jou, Lily Kong

Research Collection School of Social Sciences

Social and cultural geographies have long occupied a marginal position in Taiwan's scholarship in the humanities and social sciences. Despite the influence of the so-called ‘cultural turn’ that has characterized much of Anglo-American scholarship since the 1990s (Barnett 1998), Taiwan's scholarship in the social sciences in general and human geography more specifically has remained relatively untouched by these intellectual currents till very recent years. This paper seeks to examine the social, intellectual and institutional contexts that explain this marginalization, and consider the possibilities for social and cultural geographies' emergence from marginality in Taiwan in the future. This possibility is considered …

With The Grain Or Against The Grain? Energy Security And Chinese Foreign Policy In The Hu Jintao Era, James T. H. Tang

Research Collection School of Social Sciences

Are China’s growing energy needs insatiable, and is a resource war between China and other major energy-consuming countries, such as the United States, inevitable? China’s pursuit of overseas energy resources to feed its fast-growing economy has given rise to observations that energy is now the driving force behind Chinese foreign policy and predictions that potential conflicts between China and other countries are likely to arise as China becomes more aggressive internationally in search of resources.

Institutional Holdings And Analysts’ Stock Recommendations, Qiang Cheng, Xia Chen

Research Collection School Of Accountancy

Prior studies document that institutional investors outperform the mar- ket. We investigate whether this superior performance is partly derived from institutional investors use of sell-side analysts stock recommenda- tions. First, we find that the quarterly change in institutional ownership is positively correlated with consensus recommendations. After control- ling for other determinants of institutional holdings, the quarterly change in institutional ownership is on average 0.90 percent higher for firms with favorable recommendations than for those with unfavorable recommendations. Second, using large trades to proxy for institutional trading, we find that there are more buyer-initiated than seller-initiated large trades around favorable recommendations …

A Capabilities Perspective On The Effects Of Early Internationalization On Firm Survival And Growth, Harry J. Sapienza, Erkko Autio, Gerard George, Shaker A. Zahra

Research Collection Lee Kong Chian School Of Business

Recent critiques of internationalization process models question the wisdom of delaying internationalization. Internationalizing late allows firms to assemble resources and gain experience but also allows inertia to develop. We resolve this tension by positing that internationalization has differing effects on firm survival and growth. These effects are moderated by organizational age, managerial experience, and resource fungibility. Our framework provides insights into the evolution of capabilities across borders and may be tested and built on by organization researchers.

What Matter For Child Development?, Fali Huang

Research Collection School Of Economics

This paper estimates production functions of child cognitive and social development using a panel data of nine-year old children each with over two hundred home and school inputs as well as family background variables. A tree regression method is used to conduct estimation under various speci…cations. A small subset of inputs is found consistently important in explaining variances of child development results, including the number of books a child has at various ages and how often a mother reads to child by age …ve, while the e¤ects of race and maternal employment are negligible when detailed inputs are controlled.